NOTES ON AGAVE. 309 
than the lobes; anthers 5-6 lines long ; capsule 10-14 lines long, 4-5 wide ; seeds 14-2 lines wide, marked with flat 
punctate aree. 
III. PANICULATA. [309 (21)] 
Flores ad apices ramorum inflorescentie congesti paniculati. 
These are the typical Agaves, of which 20 or more forms are enumerated, with stout, often very large, fleshy 
leaves, almost always with spiny marginal teeth and strong spiny tips, a stout and high scape bearing a paniculate 
inflorescence, the branches of which are usually 4-2 feet long or even more, stout, vertically compressed, and naked up 
to the base of the hicaceestpmh or Labecrncree Most of them are stemless, some have trunks several feet high, but none 
grow as large as some Yuce g them we find the economically and commercially most important Agaves, 
especially A. Americana said: Pe ern 
* Tubus perianthii lobis multoties brevior. 
t Stamina tubi basi inserta. 
9. AGAVE NEWBERRYI, n. sp.: acaulis ; foliis e basi latiore sensim angustatis lanceolato-linearibus rigidis 
integris apice aculeo fusco sential supra canaliculato armatis ; scapo gracili, panicule anguste racemiformis ramulis 
remotis bracteis lanceolatis breviusculis fultis pirlae peucihote ; perigonii tubo campanulato brevissimo, lobis 
oblongis, staminibus infimo tubo adnatis. — Agave, n. sp.? Torrey in Bot. Ives Exp. p. 29. 
Peacock Spring, Northwe sees Arizona, det of the San Francisco Mountains, between them dnd the Colorado 
River, over 4,000 feet alt., discovered, when just a to bloom, March 31, 1858, by Dr. J.S. Newberry on Lieut. 
Ives’ Expedition, and named for him in commemorati nol his services to Botany in this and other western explora- 
tions. — This very peculiar plant, of which we vnfortnatly know so little, is so different from the other paniculate 
Agaves known to me, that their connection seems to be altogether ‘otidical but for the present I cannot do bet 
than to place it between them and the last section, to which the radial stature ini the form of the leaves seem to approx- 
imate it, spite the inflorescence is clearly a contracted, short-branched panicle 
Leaves 7-10 inches long, at base ? inch wide, with entire, cartilaginous 1 margins, terminating in 
sharp, eee or almost trianpulas, atk colored spine, grooved on the upper side, and about $ inch ae [810 (22)] 
Scape 8 feet high, flowers in a long, loose raceme or contracted panicle; bracts lanceolate, about 4 inch long ; 
branchlets 1-3 inches apart, 1-2 inches long, bearing 2-5 (not opposed) flowers. The whole flowerbud, just about 
opening, nearly 1 inch long; prismatic ovary equal to perigone; tube very short, only 4 or 4 of the lobes; short stamens, 
which, when fully developed, probably will not be much longer than the perigone, from near the base of the tube ; 
anthers 44-5 lines long : : a 
++ Stamina tubi fauci inserta. 
0. AGAVE DESERTI, 7. sp.: acaulis; foliis crassis glaucis supra basin latissimam aculeato-dentatam leviter con- 
tractis ovato-lanceolatis sursum sensim attenuatis in spinam gracilem elongatam compressam ad medium anguste can- 
aliculatam excurrentibus, margine sursum corneo —— — ——— aculeis uncinatis flexuosis fuscis armato ; 
scapo graciliore bracteis distantibus foliaceis | i to, ramulis panicule superioribus erectis, 
pedicellis fasciculatis longiusculis ; floris fai ovario subprismatico perigonium fere zquante, tubo infundibuliformi 
brevissimo lobis oblongis erecto-patulis quater s, quinquies breviore, staminibus loborum basi insertis ipsis lobis duplo 
ya ieet ; capsula oblongo-prismatica breviter cuspidata 
tern base of the aioe California mountains mee in the adjoining deserts. Flowers in June, but occasion- 
ally, as most of these plants do, at other seasons. — The then Lieut. Emory,’ in the adventurous expedition to Cali- 
fornia in the fall of 1846, was the ‘ee to discover this species in Valcitron, southeast of elipe. A few years later 
Dr. Parry found it “on the arid hills and valleys” in the same region, and drew up a full dideaioon, but did not col- 
lect any specimens. Since then it was lost sight of until within this year, when horticultural gee — brought 
it into notice. My specimens were obtained from Mr. G. N. Hitchcock of San Diego an . Pa 
The plant is one of the smaller of this section ; leaves densely clustered around the ioe of the al [311 (23)] 
ascending and erect, thick, sere deeply concave, very glaucous, 6-12 inches long, }-2 wide, contracted 
above the v ich is edged with sharp, straight, pale teeth, wider x ol the middle sit terminated by 
an scindialis long (1-2 as and slender, laterally compressed spine marked with a deep narrow groove half-way 
14 Possibly a horny tooth-bearing edge, such as we find in in full bloom. The sharp thorns terminating every leaf were 
A. heteracantha, may have broken off, but no traces of such a great ee tee to our dismounted and wearied men. . . . 
remain in the only extant specimen A number of plants were eut by the soldiers and the body 
n his Notes on a Military Recomnoissance, Washington, of them used as A few flowers were saved, and are 
ise p. 104, he says, under date of Nov. 29: ‘‘ We rode for now in the late Dr. Torrey’ s herbarium 
miles through thickets of the centennial plant and found one 
